From Longman Dictionary of Contemporary Englishbreechbreech /briːtʃ/ noun [countable] the part of a gun into which you put the bullets
Examples from the Corpus
breech• The advantages of double barrel over the old single barrel breech loading books is numerous.• Wool was big, not just for jumpers but for breeches.• A formidable figure she was too, in her belted smock and green breeches.• He was dressed neatly enough in grey breeches, white shirt and an ill-fitting blue coat, but was barefoot.• It was flag bedecked and in front of it a brass band were parading in breeches, green-Loden jackets and cocked hats.• Quickly she pulled on the breeches.• Alfred somewhat nervously served drinks, aware of uncomfortable tight breeches.Origin breech Old English brec, plural of broc “leg-covering” 